No crank/No start 3.6L GM FIXED!
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- Опубликовано: 18 янв 2020
- 2010 Buick enclave, 3.6l no crank no start with the fuel pump running constantly when key is on. Did a re and re on the engine to replace and then experienced a electrical failure a couple days after the install.Could not get the scan tool to read. Traced the fault to a bad connection on a ground terminal. Re-soldered the connection and fixed the problem.
An easy check would be to find the ground wire on your MAF sensor, center one, black/white. Put a continuity tester from that pin to any ground on motor, then reach to the front of motor bank 1 and wiggle the harness connected to the cam actuators. That harness goes just behind the head and is bolted there. If the tester flickers on and off, you have a poor connection at the terminal where the wire is soldered on. There are 9 wires in that cable that will all have a bad ground because they are crimped as one.. 1 goes to starter relay, 1 to MAF , a couple to transmission and a few to ECM, For some reason the fuel pump keeps running as well. A scanner tool won't read anything after the ABS, and there is no voltage at DLC pin 7, and elevated voltage at pin 4/14 and 4/6 above the standard 2.6V with key on.
If this can help anyone from trying to find a wire fault, I hope so.
you saved me a lot of money from airport parking! thank you very much!
Thank you! Last week I spent three days helping a friend with similar issues on his Acadia. He had put a new timing chain on about 6 weeks ago and it started one time then wouldn't start again. Had it have been anyone else I would have figured that they didn't know what they were doing. However this guy has his own shop and is the guy that everyone take their stuff to when they can't figure things out. So it was one of his kids vehicles and he was working on it in his free time and getting frustrated big time. I was researching on the internet what I could find since last Monday and we have been trying different things. We also had checked the fuel pump module, body control module and PCM and changed relays and went all through the wiring. From the way it looked to us we had a grounded out positive wire, however I'm guessing now that the 50amp fuse that showed power when the battery is unhooked on the positive side and two jumper wires, one hooked to the positive side of the battery and the other hooked to the positive cable must be hot at all times now. Otherwise it wouldn't have had a ground to complete the circuit.
Anyway I watched this video tonight and called him up and told him about it. He called me a hour later and said you found it, and he said that SOB finally runs! THANK YOU again for the video!!! YES IT HELPED!
Thank You for the Video. I had my engine replaced back in Dec 2022. After getting the engine replaced, it started with the No crank No start situations. I'd taken it back to the mechanic who put the used engine in and he could not find anything wrong with it. I then took it to another mechanic and they could not find the problem and suggested that I take it to a GM dealership. At the GM dealership they replaced the Fusebox and tge Bcm. I the found your video and texted the mechanic and he then repaired the 8 ground connectors. I probably would still be working on this if not for your Video!!! Again, Thanks!!!
@@Farristpthat is the same thing that happened to my friend! Except he is a mechanic and has been for years. All he did was replaced the timing gear and chain, and it ran for a short time, then nothing for a ling long time, until I helped him and found this video.
Thank you my 09 enclave wouldn’t start I shook the cables to the fuse box and it started. The next day I shifted into reverse and it went into reverse and stalled restarted it and the same thing happened, I restarted later and it went into reverse and backed up normally. I saw your video and was convinced you found the solution. I also saw a comment on an enclave forum from a GM tech. Guy who said that this was a defect that GM tech’s knew about and he said he fixed most of these type of cars by simply doing this. Anyways I had my mechanic remove the fuse box and he found the ground was badly rusted he cleaned it up put it back together and success. All codes gone and the car runs better than ever.
Thanks for taking the time to care to post this.
Thank you so much same thing happened to my 2011 GMC Acadia. Could not find the problem I watch a bunch of video. But for some reason I watch wiggle wire same. The car start . You just save me a lot of money 👏👍
Right on point. After 3 days of searching you nailed it. Thank u so much.
Thank you for showing me the video now my car is running
Thanks. Mine was loose. It's a 10mm bolt. Would have been nice if it had been a 13mm or 14mm instead. Having long arms helps to reach behind the cylinder head to access the bolt. I used a 5 to 6 inch long box wrench and felt around for the bolt and wire. When i first plugged in scan tool I found high voltage on Bank 1 Crankshaft Position Sensor. Then I started having intermittent no starts. Finally vehicle shut off as I was driving into the gas station one day and would not restart. Another scan of the vehicle showed the same results as yours. i used a test light at ECM fuses and Starter Relay and noticed how dim it was. That's when i knew I was dealing with a bad ground somewhere. Tightened the bolt to that ground cable and all is good.
Muchas gracias brooooo te debo un millón ojalá te valla bien en la vida bro ojalá te quiero
I have the same problem, I can wait until the sun comes out to check it 😅😅
Excellent work detective!!!!!!
Mannn I have 07 Saturn outlook and have been having issues with the sunroof drain hoses leaking into the car and it has been about to drive me crazy but I am going to check this ground just in case because it makes so much sense as I'm having the exact same problems! I appreciate you posting this video💯
Thanks for posting. Just had your video posted in my feed of suggested videos.
I hade the exact same thing happen to me, thinks to this video, It wasn’t a big issue for me, otherwise I would have towed it to a Chev dealership, Thanks for posting this video
do u kno the actual location. could sure help me a ton
Thank - You, I too am entering my 3rd day chasing through "MADE IN CHINA" wire looms - not impressed with Gov't Motors on this 2011 Chev Traversity ( Traverse + Adversity = Traversity -- It has bee one let down after another a GIANT LEMON from the factory !!
Thank you for posting.
who in the Atlanta GA area can you recommend to do this job for me? Also, I noticed if you put your foot on the brake when you start the car, it works every time.
I will try that. been trying everything I can for a week now
@jr. roccafeller Can you more specifically state what your ground terminal problem was?
thank you for the video
Helped thx
Just had the same issue with my 2011 acadia the only thing the threw me of it was that it would start randomly, redid the ground connections no more issues.
Question you 15amp fuse for ecm1 blows every time you try to start? Please answer me
My 2010 GMC Acadia has been haunting me and my family for over two years .It has had a problem randomly not starting and then I would wait a few hours and it would start up like nothing happened so I just went with it saying we’ll I have checked all relays and fuses,PCM,Bcm,and new battery,ignition switch,Starter,Alternator..Everything so I thought..I’m not an electrician but it really should have been one of the first places I looked but me being the guy who say bull crap I don’t get lucky enough to have something as simple as a ground problem but low and behold BOOM that ground that’s in the back side of the engine was the problem the whole time ..All I can say is wow thank you for the video and pointing me in the Perfect and Correct place ..The Acadia is back in action..Thank you
Hi there that ground block could that make theft deterrent prevent my Buick from starting
Do you have a diagram of where the ground wires go from that connector?
SO i havd a 2017 that just has no crank , no start and had everything checked by a local shop . battery alternator and every few days the car is completely dead nothing. If. I jump it will start and no issues again for days.
seems like GM vehicles are all notorious for having a bad ground somewhere that isn't easy to access
hello im having a problem with my 2016 Chevy Traverse Lt AWD 3.6 i was listening to music in my car then the battery died i changed the battery put different one in still nothing any help would be appreciated ty
Hi I have same issues.. all lights works but don’t crank
Gret job thank you for the help
Ultrasonic weld
Does this also apply to 2012 Acadia?
this has definitely helped me more than you know.. can you possibly send me a picture of where the location of that ground actually is like where it actually bolts to?
It’s under the fuse box attached to the inner fender
I don’t have the enclave anymore it was too much trouble
@@franktauber9634I have been having issues with my 2010 Buick Enclave too. Already spent 2K but sometimes won’t start. Now I will be towing it to the mechanic tomorrow to get a new starter fixed. It’s so crazy!
Man I hope this is whats wrong!! I'm into a grand and it still won't crank, dealer "SAYS" Its the starter and another $600!!
Think the 2010 Chevy traverse has the same ground and location?
yes
My 08 enclave would only click to start, I knew it was the relay since I had a dodge that did the same thing. Just got the relay today and bam it started right up. After 4 tries I knew it was fixed. Welp so I thought. I took off to buy dinner and the first thing I noticed the ac got hot then the gauges started bouncing like crazy. Then it didn’t really have power to drive. I got home and removed the good relay and disconnected the power cable to reset system. Put old relay and nothing, new relay and nothing. Saw your video and pulled the cable and it started with old relay then 5 miles out speed gauge was bouncing ac got hot again and made it home turned off and now lost all power again. What caused the gauges to bounce? Anyone else had this issue?
I have a 2010 traverse will not start or crank when cold. When it warms up it starts. Any help would be awesome.
I have a lacrosse with a crankshaft position sensor code doing the same thing sometimes it won’t start and when it does start it runs rough.
I changed both crankshaft position and cam position sensors the 02 sensors alternator starter and water pump cause of a leak and still the crankshaft code is coming on
Need to look at the crank indicator on the crankshaft viable throught the crankshaft position sensor hole. Google it. Sounds like the reference on the actual cranks has moved...aka new engine of so
No not engine it’s timing chain code.
Did you ever figure it out.
@@thewhypodcast3642 nope I changed the ecm twice and it did it again. I gave up and sold it
just did motor - tranny mounts - torque strut , jacked up motor this is probably my problem !
IN FIX MY ENCLAVE THE PROBLEM IS THE RELAY CRACK IS GOIN IN THE FUSE BOX IN THE HOOD EASY TO FIX.
State that clearly please
I think I’m having an electrical issue that’s making 2 4 6 misfire. Are the coils grounded somewhere?
I'm not sure Jasen, but if it is happening all on the same bank, it would be something I would check out. If you look online for your cars wiring schematic, you can trace back to where those coils are grounded. I wouldn't be surprised if it were in that bundle of wires I mention in the video, there are quite a few crimped together where its bolted to the engine there, and that crimp is so poor that it leads to corrosion and eventually looseness. Good luck.
I had a problem where all the injectors on the back side were not working, there is two separate fuses one for each bank, fuse was good but the injectors were not getting power , to fix the problem i overlapped a fused power wire to the injectors , that fixed the problem, the problem is on the under hood fuse box
@@therealdealtech8460 we had a problem with coils 1 and 5 and this fixed the whole problem with no start and the coils. I hope this helps you. I'm so glad this guy found this.
@@jr.roccafeller419 Where can I find wiring schematics?
I have the same issue, but no crank no start 😢
How in the world did you fit your arm back there!! Holy cow, can't get my hand down there... Tried from underneath and the angle of the bolt is equally as hard... Had to walk away from it for a few. Hopefully I can get it 😬
The first time I took it off from below, I used 28 inches of extensions with a swivel on the end. I rapped electrical tape on the swivel so it wouldn't move around a lot. When I installed it, I was able to get it back on from above with a 1/4 drive ratchet and deep socket, laying on top of the motor. Lots of cursing, and anger at such a stupid place to put a ground that controls so many things.
Good Luck.
@@jr.roccafeller419 LOL I KNOW RIGHT !!!!
Trying last ditch we'll see!
the exact location of this ground bank would help me a ton. trying to locate it
Drew, when you are looking at the engine front where the fan belts are, there is a wire harness on the left side, 4-5" down from the top. It winds to the back of the head and is held on with a 10mm bolt, if i remember correctly. It's a tight fit to get your hand there because the firewall is close to the motor. Hope that helps.
thanks for the quick reply. man its awful how gm thought up such a brutal inaccessible van......
Starter
wow awesome vid ,heres my story ,i go to a dr.'s appoint ,car has been running fine ,3 hrs later push the button and 1 click ,no crank no start this was 3 weeks ago , code reader says PO23F AND UO100 . i keep blowing my ECM FUSE #10 . i am concerned about the po23f code ," fuel pump secondary circuit /open " ....... can you please give me a few pointers ,been out almost a month now . 2011 BUICK LACROSSE CXS 3.6L ......
These are some of the problems that we were having. I just left this guy a thank you because it fixed the problems that we were having. The vehicle had been down for 6 weeks. It started one time after a new timing chain was put in and hadn't ran since until I saw this video about 3 hours ago. Not it runs.
I've had an issue with all kinds of things. Misfire in number 4 coil keeps going bad thought it was a bad coil. Replaced like 4 times. Code coming up for the fuel pressure sensor. I've been having surges driving when my speed goes to 40 to 50 mph. Problems with my AC blowing in the back of my 2008 Cadillac SRX 3.6. Door locking and opening issues. Well I thought I was having Alternator problems. Had a little smoke coming near the harness of wires near the back of the engine. Smelled electrical. Changed the original one out for remanufactured one. Thought the remanufactured one was bad. Drove it the Service Charging System light came on again. Had it checked said the Alternator was bad. So I got another one installed it a second time. Same thing happened driving it about 6 miles. Then I started looking in the wires for a bad ground and found the main ground and the covering on it had melted on the wires so I'm guessing here is my problem. I've been dealing with this all week hope this is the problem. I really do think it is. Let me know what you all think?